package ch8;

import java.util.Scanner;

/**
 * @author oldliu
 * @since 1.0
 */
public class AvgScore {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int sum=0;
        int s1,s2,s31;

        for(int i=1;i<=31;i++){
            sum+=in.nextInt();
        }
    }
}
